Influence of the adjustable EMBr on the asymmetric flow in a thin slab caster with a misaligned SEN
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2023. Beitrag in MCWASP XVI IOP Conf. Series: Materials Science and Engineering.
Publikationen: Konferenzbeitrag › Paper › (peer-reviewed)
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T1 - Influence of the adjustable EMBr on the asymmetric flow in a thin slab caster with a misaligned SEN
AU - Vakhrushev, Alexander
AU - Karimi Sibaki, Ebrahim
AU - Wu, Menghuai
AU - Ludwig, Andreas
AU - Nitzl, Gerald
AU - Tang, Yong
AU - Hackl, Gernot
AU - Watzinger, Josef
AU - Kharicha, Abdellah
N1 - The authors acknowledge the financial support by the Austrian Federal Ministry of Economy, Family and Youth and the National Foundation for Research, Technology and Development within the framework of the Christian Doppler Laboratory for Metallurgical Applications of Magnetohydrodynamics.
PY - 2023
Y1 - 2023
N2 - The thin slab casting (TSC) of steel is a type of the continuous casting (CC) with anarrow funnel-shaped mold, characterized by the rapid solidification and fast production rates.A highly turbulent flow impacts on a growing solid shell due to the constant feeding of the freshhot melt. That strongly affects the solidification profiles and final quality of the TSC slabs. Thepresented work numerically investigates the solidification inside the TSC mold with theasymmetric flow pattern caused by the misalignment (tilting) of the submerged entry nozzle(SEN). These effects were considered with and without the applied electromagnetic brake(EMBr). The influence of the adjustable EMBr on the asymmetric flow and solidification profilesincluding turbulent and magnetohydrodynamic (MHD) effects were studied. During consistentseries of simulations, the EMBr was varied between the magnetic poles and the time-averagedvelocity and temperature fields were collected. The results showed that symmetric EMBr of alocal type could partially improve the asymmetry. An optimal braking scenario was found forthe casing speed of 5.5 m/min and maximum EMBr value of 180 mT. The solidification andMHD models including turbulence were developed using OpenFOAM®.
AB - The thin slab casting (TSC) of steel is a type of the continuous casting (CC) with anarrow funnel-shaped mold, characterized by the rapid solidification and fast production rates.A highly turbulent flow impacts on a growing solid shell due to the constant feeding of the freshhot melt. That strongly affects the solidification profiles and final quality of the TSC slabs. Thepresented work numerically investigates the solidification inside the TSC mold with theasymmetric flow pattern caused by the misalignment (tilting) of the submerged entry nozzle(SEN). These effects were considered with and without the applied electromagnetic brake(EMBr). The influence of the adjustable EMBr on the asymmetric flow and solidification profilesincluding turbulent and magnetohydrodynamic (MHD) effects were studied. During consistentseries of simulations, the EMBr was varied between the magnetic poles and the time-averagedvelocity and temperature fields were collected. The results showed that symmetric EMBr of alocal type could partially improve the asymmetry. An optimal braking scenario was found forthe casing speed of 5.5 m/min and maximum EMBr value of 180 mT. The solidification andMHD models including turbulence were developed using OpenFOAM®.
KW - EMBr
KW - asymmetric flow
KW - thin slab caster
KW - misaligned SEN
U2 - 10.1088/1757-899X/1281/1/012026
DO - 10.1088/1757-899X/1281/1/012026
M3 - Paper
T2 - MCWASP XVI IOP Conf. Series: Materials Science and Engineering
Y2 - 18 June 2023 through 23 June 2023
ER -
